menu delay disappears

app/src/main/java/com/lizongying/mytv/CardAdapter.kt

@@ -2,12 +2,14 @@ package com.lizongying.mytv
 
 import android.graphics.Color
 import android.view.ContextThemeWrapper
+import android.view.MotionEvent
 import android.view.View
 import android.view.ViewGroup
 import android.view.animation.ScaleAnimation
 import android.widget.ImageView
 import androidx.leanback.widget.ImageCardView
 import androidx.lifecycle.LifecycleOwner
+import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
 import com.lizongying.mytv.models.TVListViewModel
@@ -48,7 +50,7 @@ class CardAdapter(private val owner: LifecycleOwner, private var tvListViewModel
         val tvViewModel = item as TVViewModel
         val cardView = viewHolder.view as ImageCardView
 
-        cardView.setOnFocusChangeListener { _, hasFocus ->
+        val onFocusChangeListener = View.OnFocusChangeListener { _, hasFocus ->
             listener?.onItemFocusChange(item, hasFocus)
             if (hasFocus) {
                 startScaleAnimation(cardView, 0.9f, 1.0f)
@@ -57,6 +59,8 @@ class CardAdapter(private val owner: LifecycleOwner, private var tvListViewModel
             }
         }
 
+        cardView.onFocusChangeListener = onFocusChangeListener
+
         cardView.setOnClickListener { _ ->
             listener?.onItemClicked(item)
         }

app/src/main/java/com/lizongying/mytv/MainActivity.kt

@@ -93,7 +93,8 @@ class MainActivity : FragmentActivity() {
         } else {
             packageInfo.versionCode.toLong()
         }
-        settingFragment = SettingFragment(versionName, versionCode, channelReversal, channelNum, bootStartup)
+        settingFragment =
+            SettingFragment(versionName, versionCode, channelReversal, channelNum, bootStartup)
     }
 
     fun showInfoFragment(tvViewModel: TVViewModel) {
@@ -148,7 +149,7 @@ class MainActivity : FragmentActivity() {
         if (mainFragment.isHidden) {
             mainFragment.setPosition()
             transaction.show(mainFragment)
-            keepRunnable()
+            mainActive()
         } else {
             transaction.hide(mainFragment)
         }
@@ -156,7 +157,7 @@ class MainActivity : FragmentActivity() {
         transaction.commit()
     }
 
-    fun keepRunnable() {
+    fun mainActive() {
         handler.removeCallbacks(hideMain)
         handler.postDelayed(hideMain, delayHideMain)
     }

app/src/main/java/com/lizongying/mytv/MainFragment.kt

@@ -84,6 +84,19 @@ class MainFragment : Fragment(), CardAdapter.ItemListener {
                 itemBinding.rowItems.layoutManager =
                     LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)
 
+                itemBinding.rowItems.addOnScrollListener(object : RecyclerView.OnScrollListener() {
+                    override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+//                        super.onScrolled(recyclerView, dx, dy)
+//                        val layoutManager = recyclerView.layoutManager as LinearLayoutManager
+//                        val firstVisibleItemPosition = layoutManager.findFirstVisibleItemPosition()
+//                        val firstVisibleViewHolder = recyclerView.findViewHolderForAdapterPosition(firstVisibleItemPosition)
+//                        if (firstVisibleViewHolder != null && !firstVisibleViewHolder.itemView.hasFocus()) {
+//                            firstVisibleViewHolder.itemView.requestFocus()
+//                        }
+                        (activity as MainActivity).mainActive()
+                    }
+                })
+
                 val layoutParams = itemBinding.row.layoutParams as ViewGroup.MarginLayoutParams
                 layoutParams.topMargin = dpToPx(11F)
                 itemBinding.row.layoutParams = layoutParams
@@ -158,7 +171,7 @@ class MainFragment : Fragment(), CardAdapter.ItemListener {
     override fun onItemFocusChange(tvViewModel: TVViewModel, hasFocus: Boolean) {
         if (hasFocus) {
             tvListViewModel.setItemPositionCurrent(tvViewModel.id.value!!)
-            (activity as MainActivity).keepRunnable()
+            (activity as MainActivity).mainActive()
         }
     }
 

app/src/main/java/com/lizongying/mytv/SettingFragment.kt

@@ -1,11 +1,9 @@
 package com.lizongying.mytv
 
-import android.os.Build
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.annotation.RequiresApi
 import androidx.fragment.app.DialogFragment
 import com.lizongying.mytv.databinding.DialogBinding
 

app/src/main/res/layout/channel.xml

@@ -13,7 +13,6 @@
         android:layout_height="wrap_content"
         android:layout_gravity="end"
         android:layout_marginTop="0dp"
-        android:text="99"
         android:textColor="#FFEEEEEE"
         android:textStyle="bold"
         android:textSize="50sp" />